<template>
  <div class="chart-container app-container nohead">
    <div id="chart" style="height: 530px; margin-top: 30px"></div>
  </div>
</template>

<script>
import echarts from "echarts";
import resize from "../mixins/resize";
export default {
  name: "extend-graphDemo-echartsBarAcross",
  mixins: [resize],
  data() {
    return {
      chart: null,
      option: {
        title: {
          text: "世界人口总量",
          subtext: "网络数据",
        },
        tooltip: {
          trigger: "axis",
          axisPointer: {
            type: "shadow",
          },
        },
        legend: {
          data: ["2017年", "2018年"],
        },
        grid: {
          left: "3%",
          right: "4%",
          bottom: "3%",
          containLabel: true,
        },
        xAxis: {
          type: "value",
          boundaryGap: [0, 0.01],
        },
        yAxis: {
          type: "category",
          data: ["巴西", "印尼", "美国", "印度", "中国", "世界人口(人)"],
        },
        series: [
          {
            name: "2017年",
            type: "bar",
            data: [
              205290000, 257740000, 322760000, 1304200000, 1405372834,
              7500000000,
            ],
          },
          {
            name: "2018年",
            type: "bar",
            data: [
              210867954, 266794980, 326766748, 1354051854, 1394102196,
              7577908055,
            ],
          },
        ],
      },
    };
  },
  mounted() {
    this.initChart();
  },
  beforeDestroy() {
    if (!this.chart) {
      return;
    }
    this.chart.dispose();
    this.chart = null;
  },
  methods: {
    initChart() {
      this.chart = echarts.init(document.getElementById("chart"));
      this.chart.setOption(this.option);
    },
  },
};
</script>
